
Proceedings Paper
SVD-based robust watermarking using fractional cosine transformFormat | Member Price | Non-Member Price |
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Paper Abstract
In this paper, a robust watermarking technique based on fractional cosine transform and singular value decomposition
is presented to improve the protection of the images. A meaningful gray scale image is used as watermark
instead of randomly generated Gaussian noise type watermark. First, host image is transformed by the means
of fractional cosine transform. Now, the positions of all frequency coefficients are changed with respect to some
rule and this rule is secret and only known to the owner/creator. Then inverse fractional cosine transform is
performed to get the reference image. Watermark logo is embedded in the reference image by modifying its
singular values. For embedding, the singular values of the reference image are found and then modify it by
adding the singular values of the watermark image. A reliable watermark extraction algorithm is developed for
extracting watermark from possibly attacked image. The experimental results show better visual imperceptibility
and resiliency of the proposed scheme against intentional or un-intentional variety of attacks.
Paper Details
Date Published: 28 April 2010
PDF: 11 pages
Proc. SPIE 7708, Mobile Multimedia/Image Processing, Security, and Applications 2010, 77080O (28 April 2010); doi: 10.1117/12.850227
Published in SPIE Proceedings Vol. 7708:
Mobile Multimedia/Image Processing, Security, and Applications 2010
Sos S. Agaian; Sabah A. Jassim, Editor(s)
PDF: 11 pages
Proc. SPIE 7708, Mobile Multimedia/Image Processing, Security, and Applications 2010, 77080O (28 April 2010); doi: 10.1117/12.850227
Show Author Affiliations
Balasubramanian Raman, Indian Institute of Technology Roorkee (India)
Published in SPIE Proceedings Vol. 7708:
Mobile Multimedia/Image Processing, Security, and Applications 2010
Sos S. Agaian; Sabah A. Jassim, Editor(s)
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